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Examines the deposition of polytetrafluoroethylene (PTFE) films by laser ablation. Role of ultraviolet absorption for pyrolitic decomposition of PTFE films; Use of x-ray photoemission and Fourier transform infrared spectroscopy to characterize the PTFE films; Effect of spot size of photon fluence.

Abstract. KrF excimer-laser ablation of sintered-powder polytetrafluoroethylene (PTFE) targets is used for the deposition of high-quality PTFE films on metallic microstructures and metal backplates for electroacoustic applications. The films are found to be highly crystalline, consisting of...

Abstract. KrF-laser ablation of pressed polytetrafluoroethylene (PTFE) targets is accompanied by the ejection of submicron- to micron-sized particles. Collected ejecta consist of four basic particle morphologies ranging from small particles 50-200 nm in diameter to larger particles Is similar to...

Pulsed laser deposition of PTFE was carried out using a 1064-nm laser. Two different pulse regimes were examined to determine their effectiveness in causing deposition. The first of these consisted of a 20-ns Gaussian pulse, while the second was a pulse train comprising twenty 1-Î¼s pulses...

We have developed a new laser ablation and plasma hybrid technique for depositing thin diamond-like carbon (DLC) films on Si<100> substrates at room temperature and at 110 Â°C with improved optical and mechanical properties. The technique involves coupling of laser energy (Î»=0.308 Î¼m,...

Reports on the fabrication of laser patterned arrays of interfaces on epitaxial thin films with the aim of developing versatile and low-cost technologies for interface engineering in manganites. Interfaces in the films induced by laser patterning of monocrystalline substrates; Growth of...

Reports that the target material with nominal composition of La0.5Sr0.6TiO3 sintered in air is an insulator and not a single-phase compound. Fabrication of highly electrical conductive and epitaxial thin films by pulsed laser ablation.

Examines the island growth and surface morphology of epitaxial Y-Ba-Cu-O thin films on magnesium oxide substrate. Growth of films by krypton fluoride excimer laser ablation; Use of scanning electron and tunneling microscopies; Determination of the average film thickness.